In contradistinction to multi-band antennas in general, the full size G5RV antenna was not designed as a half-wave dipole on the lowest frequency of operation, but as a 1/2λ centre-fed long wire antenna on the 20 m band, where the 10.36 m (34 ft) matching section (the open-wire ...
TRAM 1185 Amateur Dual-Band Magnet Antenna $35.95 Compare Add To Cart Browning BR-1010-UHF NMO 3/4" Hole Mount $24.99 Compare Add To Cart MFJ-347 3/8-24, DOUBLE T PIPE MOUNT, W/SO-239 $29.95 Compare Add To Cart Browning BR-180 - VHF/UHF Mobile Dual Band Amateur Antenna - ...
There are a number of military surplus "brick" multi-band (VHF/UHF) power amplifiers aka Tactical Booster Amplifiers on the market that maybe can be used in the ham bands. They are commonly about 3.3" x 2.5" x 8" in size and weigh about 3 pounds. One is theKMW1031rated at 20 Watts...
Handles a Full kW on All Bands. Tough--Pull-tested for Ice and Snow Loads. Professionally Engineered and Built. Center or End Supported. Fully Assembled with 81-Feet of Ladder Line (40-Feet with UltraLite Kid). NEW UltraLite Kid: 40-6m, Lightweight and Small, Great for Small Lots, Ca...
These commands are typically used to dial a phone number to call but can also be used to signal phone control commands or control remote equipment, since the control tones are played on the same channel as the voice signal. It is an in-band signaling system; this is different than out-of...
AIS data is transmitted in the 160 MHz band, for which you'd need a suitable antenna. Note -- ADSB/UAT antennas will definitely not work! You would need a RTL-SDR dongle, potentially with an LNA, and potentially with a filter. The filter must be dedicated to the 160 MHz band. Dongle...
, and, moreover, are close to optimum (within 1.5 dB) in certain regimes. Thus, using distributed antennas, we can provide the powerful benefits of space diversity without need for physical arrays, though at a loss of spectral efficiency due to half-duplex operation and possibly at the cost...
HAUPTMAN HAM, LLP Claims: What is claimed is: 1.A multi-band U-slot planar antenna comprising:a ground plane;a connector having a ground terminal connected to the ground plane and a feeding terminal for feeding a signal; anda planar radiation device comprising:a feeding point connected to the...
A significant advantage with the antenna system according to the present invention is the size reduction that obtained by placing the antennas close together as well as the folding of the antenna patterns. The main antenna2comprises a dual band PIFA antenna with a GMS part4and a DCS part5. ...
8.The antenna of claim 1, wherein the first conductive strip segment and the second conductive strip segment comprise monopole-like antennas. 9.A method of forming a multi-band diversity antenna element for an external medical communicator, the method comprising:coupling a first end of a first ...